I'm working on a Java program where I'm trying to collect names using a Scanner and store them in a String array. However, I've noticed that the first value of my array always comes up as null. I'm using a method to read user input in a loop, but it seems like the first input is being skipped. Here's a snippet of my code: I'm prompting the user to enter names, but despite saving those names to an array, the first index remains null. What could be causing this behavior?
2 Answers
Right away, I noticed that you are using two different array names in your snippets: 'nomes' and 'names'. Just double-check that you are consistently using the correct array throughout your code. If you are indeed using the same names in the full program, then it might not be related to the array names, but keep an eye on those details!
It sounds like the issue might be related to how you're reading input. If you've called `sc.nextByte()` prior to `sc.nextLine()`, it will not consume the newline character, meaning the first call to `nextLine()` will return an empty string. This could be why your first array element is null. You could try adding a `sc.nextLine()` after your `nextByte()` to catch that newline and see if it resolves the problem. Also, make sure to check if you're accidentally trying to read from the Scanner after performing operations that don't consume a line properly.
Yeah, I renamed them just for the forum post. They’re the same in the code.